~/Bitcoin-Vulnerabilities$ ./attacksafe invalid_curve_attack_vulnerability.sage
Invalid Curve Attack Vulnerability
“Invalid Curve Attack” vulnerability: In February 2020, researchers discovered a vulnerability in some implementations of elliptic curve cryptography, including the libsecp256k1 library. This attack made it possible to obtain a private key if an attacker had access to a system using a vulnerable version of the library. The vulnerability has been fixed in the updated version of the library.
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~/Bitcoin-Vulnerabilities$ ./attacksafe file_unauthorized_access_vulnerability_cve-2022-24778.sage
File unauthorized access vulnerability CVE-2022-24778
Unauthorized File Access (CVE-2022-24778): A vulnerability was discovered in 2022 that could allow an attacker to access files outside of the library directory. This issue was fixed in version 3.3.7.
Transaction processing code bug (CVE-2022-24778): A bug was discovered in May 2022 that could cause transaction signatures to be incorrectly verified. This bug potentially allowed attackers to create invalid transactions that could be accepted by btcd nodes. The issue was quickly resolved and users were advised to update the library to ensure the security of their funds.
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~/Bitcoin-Vulnerabilities$ ./attacksafe incorrect_signature_validation_vulnerability_cve-2020-26250.sage
Incorrect signature validation vulnerability CVE-2020-26250
Signature Incorrect Validation Bug (CVE-2020-26250): A bug was discovered in 2020 related to improper validation of transaction signatures, which could allow an attacker to create a valid forged transaction. This issue was fixed in version 3.3.5.
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~/Bitcoin-Vulnerabilities$ ./attacksafe buffer_overflow_vulnerability_in_function_base58checkdecode.sage
Buffer overflow vulnerability in the Base58CheckDecode function
Buffer Overflow Bug (CVE-2018-17144): A critical buffer overflow vulnerability in the Base58CheckDecode function was discovered in 2018, which could allow an attacker to execute arbitrary code or cause a denial of service. This vulnerability was fixed in version 3.3.2 of the library.
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~/Bitcoin-Vulnerabilities$ ./attacksafe vulnerability_lucky13.sage
Lucky13 vulnerability
In 2013, security researchers discovered the Lucky13 vulnerability in libecc. This vulnerability allowed attackers to recover data encrypted using the CBC encryption mode by analyzing the execution time of cryptographic operations.
The Lucky13 vulnerability was caused by improper handling of error messages in CBC mode, which allowed attackers to obtain information about encrypted data through a third-party channel (runtime analysis).
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~/Bitcoin-Vulnerabilities$ ./attacksafe vulnerability_in_implementation_of_base58check.sage
Vulnerability in Base58Check implementation
DoS vulnerability in Base58Check implementation
Another major issue was discovered in 2018 in the implementation of Base58Check, a checksum extension of Base58. The vulnerability allowed a DoS (denial of service) attack by passing a specially crafted Base58Check string.
Decoding such a string resulted in excessive CPU and memory consumption, which could cause the application to hang or crash. The bug affected some Bitcoin clients and services. To fix the problem, the developers made changes to the Base58Check string checking algorithm.
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~/Bitcoin-Vulnerabilities$ ./attacksafe null_byte_vulnerability.sage
Null byte vulnerability
One of the most famous vulnerabilities in libbase58 was discovered in 2018 and was called the “Zero Byte Vulnerability.” This vulnerability allowed attackers to create specially crafted Base58 strings that were decoded by the library as strings with leading zero bytes. This could lead to a buffer overflow and potential execution of malicious code on the target system. The vulnerability was fixed by adding additional checks when decoding Base58 strings.
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~/Bitcoin-Vulnerabilities$ ./attacksafe timing_attack_vulnerability_in_ripemd160_implementation_in_openssl.sage
Timing attack vulnerability in OpenSSL implementation of Ripemd160
In 2005, a vulnerability was discovered in the Ripemd160 implementation of OpenSSL, which allowed attackers to conduct timing attacks. This vulnerability could be used to extract private keys from systems using OpenSSL and Ripemd160.
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~/Bitcoin-Vulnerabilities$ ./attacksafe vulnerability_length_extension_vulnerability.sage
In 2012, researchers discovered an “extension length” vulnerability in Double-SHA256 implementations in some cryptocurrency wallets. This vulnerability allowed an attacker to calculate a hash for arbitrary data, knowing only the hash for the initial prefix of the data.
The vulnerability was due to incorrect handling of the message length when calculating the hash. An attacker could use this vulnerability to forge digital signatures and steal funds from wallets.
Length-extension attack vulnerability: In earlier versions of libraries that implement Double-SHA256, there was a potential vulnerability known as a length-extension attack. This attack allowed an attacker to calculate a hash for the input without even knowing the original message, as long as the message length and hash were known. To eliminate this vulnerability, newer implementations use the HMAC (Hash-based Message Authentication Code) technique.
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